| A | B |
|---|
| cellular respiration | chemical change occurring inside body cells in which oxygen combines with digested food and energy is released |
| endoskeleton | internal skeleton that provides body support for all vertebrates |
| exoskeleton | hardened external covering of many invertebrates that provides protection from fluid loss, protects internal organs and provides body support |
| fertilization | sexual reproductive process of organisms using an egg and sperm |
| invertebrate | animal without a backbone |
| vertebrate | animal with a backbone |
| metabolism | total of all the chemical changes that take place in an organism |
| complete metamorphosis | hormonally controlled process of organisms which undergo extensive changes in form. (egg, larva, pupa, adult) |
| incomplete metamorphosis | hormonally controlled process of organisms which undergo significant changes in form. (egg, nymph, adult) |
| regeneration | formation of a missing body part, or an entirely new individual forms |
